$ 0.658
7
Pneumatics: wonder why the card doesn't fall off even with the water in the glass? click to find out why!
Hello steemians! It's @faithfulomoy and in this video, I'm going to show you an amazing trick/experiment to prove air actually flows in all directions. This experiment is a very simple one which you can
$ 0.000
3
$ 0.000
2
